Colorado SNOTEL Snow/Precipitation Update Report

Colorado SNOTEL Snow/Precipitation Update Report

Based on Mountain Data from NRCS SNOTEL Sites

**Provisional data, subject to revision**

Data based on the first reading of the day (typically 00:00) for Friday, April 18, 2025

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
GUNNISON RIVER BASIN
Butte	10190	9.8	12.3	80	15.1	15.9	95
Castle Peak	11500	24.1	N/A	*	27.1	N/A	*
Cochetopa Pass	10020	0.1	0.4₍₁₆₎	25*	6.3	8.4₍₁₆₎	75
Columbine Pass	9160	0.3	11.6	3	16.9	23.5	72
Idarado	9780	6.8	11.5	59	19.2	20.8	92
Mc Clure Pass	8760	1.8	13.4	13	16.0	20.4	78
Mesa Lakes	10160	9.8	16.9	58	18.6	21.9	85
Overland Res.	9890	0.5	9.0	6	11.2	16.5	68
Park Cone	9600	6.8	9.4	72	12.2	11.6	105
Park Reservoir	9990	13.6	25.2	54	17.3	26.6	65
Porphyry Creek	10790	13.4	15.0	89	19.2	16.6	116
Rat Creek	11680	9.0	N/A	*	14.0	N/A	*
Red Mountain Pass	11050	19.2	23.6	81	25.1	27.4	92
Sargents Mesa	11490	5.2	10.0₍₁₂₎	52	9.7	13.4₍₁₂₎	72
Schofield Pass	10640	23.4	32.8	71	27.6	31.2	88
Slumgullion	11560	6.8	14.2	48	12.5	14.7	85
Upper Taylor	10710	6.1	11.6₍₁₁₎	53	17.6	17.0₍₁₁₎	104
Wager Gulch	11110	7.6	N/A	*	14.1	N/A	*
Basin Index (%)		57			86
UPPER COLORADO RIVER BASIN
Arapaho Ridge	10960	20.1	23.2₍₁₈₎	87	21.4	23.1₍₁₈₎	93
Bear River	9100	7.9	11.7₍₁₆₎	68	12.3	14.6₍₁₆₎	84
Beaver Ck Village	8530	7.2	8.3₍₁₇₎	87	15.0	15.4₍₁₇₎	97
Berthoud Summit	11300	19.8	20.8	95	26.5	24.8	107
Bison Lake	10950	17.9	25.3	71	21.1	27.0	78
Buffalo Park	9240	11.8	13.9₍₂₅₎	85	15.4	17.1₍₂₅₎	90
Castle Peak	11500	24.1	N/A	*	27.1	N/A	*
Chapman Tunnel	10090	9.7	14.5₍₁₃₎	67	15.0	19.4₍₁₃₎	77
Columbine	9170	18.3	21.8	84	27.7	26.6	104
Copper Mountain	10500	14.2	15.6	91	17.0	17.5	97
Elliot Ridge	10550	19.0	21.4₍₁₁₎	89	17.9	N/A	*
Fool Creek	11130	20.7	N/A	*	21.4	N/A	*
Fremont Pass	11310	17.6	18.1	97	17.6	17.4	101
Grizzly Peak	11110	18.1	18.2	99	19.8	18.8	105
High Lonesome	10630	17.4	N/A	*	20.4	N/A	*
Hoosier Pass	11600	13.3	16.6	80	13.3	17.2	77
Independence Pass	10570	12.9	16.2	80	16.8	18.8	89
Ivanhoe	10540	16.3	16.1₍₂₉₎	101	19.9	21.4₍₂₉₎	93
Jones Pass	10420	12.2	15.4₍₂₁₎	79	21.3	20.8₍₂₁₎	102
Kiln	9610	6.7	10.3	65	13.7	15.2	90
Lake Irene	10680	22.2	23.4	95	22.7	22.0	103
Lynx Pass	8910	0.5	8.7	6	12.2	13.2	92
Mc Clure Pass	8760	1.8	13.4	13	16.0	20.4	78
Mccoy Park	9500	8.5	12.4₍₁₈₎	69	18.3	18.3₍₁₈₎	100
Mesa Lakes	10160	9.8	16.9	58	18.6	21.9	85
Middle Fork Camp	8960	3.0	10.4₍₁₉₎	29	14.5	15.7₍₁₉₎	92
Nast Lake	8710	0.2	2.0	10	11.3	12.6	90
North Lost Trail	9190	8.1	12.6	64	18.9	22.8	83
Overland Res.	9890	0.5	9.0	6	11.2	16.5	68
Park Reservoir	9990	13.6	25.2	54	17.3	26.6	65
Phantom Valley	9030	6.3	7.6	83	13.6	14.8	92
Schofield Pass	10640	23.4	32.8	71	27.6	31.2	88
Stillwater Creek	8760	0.2	N/A	*	12.5	11.0	114
Summit Ranch	9350	4.6	10.6	43	14.5	14.2	102
Vail Mountain	10290	10.8	19.4	56	19.4	21.3	91
Willow Creek Pass	9520	13.5	14.4	94	13.8	14.6	95
Basin Index (%)		73			91
SOUTH PLATTE RIVER BASIN
Bear Lake	9490	15.8	18.6	85	17.1	19.9	86
Berthoud Summit	11300	19.8	20.8	95	26.5	24.8	107
Black Mountain	8950	7.8	11.6₍₁₀₎	67	12.3	14.8₍₁₀₎	83
Buckskin Joe	11160	8.5	11.2₍₂₁₎	76	11.7	14.6₍₂₁₎	80
Copeland Lake	8570	0.2	0.0	*	12.6	14.4	88
Deadman Hill	10240	17.1	17.5	98	18.8	19.4	97
Echo Lake	10660	6.8	8.2₍₂₂₎	83	10.8	12.1₍₂₂₎	89
Hoosier Pass	11600	13.3	16.6	80	13.3	17.2	77
Hourglass Lake	9380	4.7	12.2₍₁₂₎	39	13.8	15.0₍₁₂₎	92
Jackwhacker Gulch	11030	9.8	13.4₍₂₂₎	73	17.9	18.4₍₂₂₎	97
Joe Wright	10140	22.1	22.0	100	29.4	27.8	106
Lake Eldora	9700	5.5	10.6	52	16.8	18.0	93
Lake Irene	10680	22.2	23.4	95	22.7	22.0	103
Long Draw Resv	9990	15.6	17.1₍₁₁₎	91	19.2	20.4₍₁₁₎	94
Loveland Basin	11410	19.8	20.9₍₂₈₎	95	19.0	19.4₍₂₈₎	98
Michigan Creek	10700	8.5	11.4₍₂₂₎	75	13.2	16.2₍₂₂₎	81
Niwot	9940	9.8	12.8	77	15.6	17.0	92
Rough And Tumble	10420	4.1	6.6₍₂₂₎	62	7.5	9.3₍₂₂₎	81
Sawtooth	9640	24.1	N/A	*	28.8	N/A	*
University Camp	10330	15.5	17.8	87	19.9	22.1	90
Wild Basin	9410	14.0	18.3₍₁₅₎	77	16.8	18.2₍₁₅₎	92
Willow Park	10710	16.9	18.4	92	21.9	23.6	93
Basin Index (%)		83			93
LARAMIE AND NORTH PLATTE RIVER BASINS
Arapaho Ridge	10960	20.1	23.2₍₁₈₎	87	21.4	23.1₍₁₈₎	93
Blackhall Mtn	9830	30.1	32.9₍₁₁₎	91	32.8	31.8₍₁₁₎	103
Columbine	9170	18.3	21.8	84	27.7	26.6	104
Deadman Hill	10240	17.1	17.5	98	18.8	19.4	97
Joe Wright	10140	22.1	22.0	100	29.4	27.8	106
Never Summer	10300	20.7	21.7₍₁₈₎	95	17.7	18.4₍₁₈₎	96
Rawah	9100	7.1	10.8₍₁₈₎	66	15.0	17.0₍₁₈₎	88
Roach	9710	11.9	16.2	73	18.0	20.2	89
Tower	10610	42.3	45.2	94	43.8	41.6	105
Whiskey Park	8950	26.0	26.3	99	30.2	29.4	103
Willow Creek Pass	9520	13.5	14.4	94	13.8	14.6	95
Zirkel	9320	18.3	25.5₍₁₈₎	72	31.4	33.1₍₁₈₎	95
Basin Index (%)		89			99
YAMPA AND WHITE RIVER BASINS
Battle Mountain	7460	1.5	6.6	23	16.4	16.2	101
Bear River	9100	7.9	11.7₍₁₆₎	68	12.3	14.6₍₁₆₎	84
Bison Lake	10950	17.9	25.3	71	21.1	27.0	78
Buffalo Park	9240	11.8	13.9₍₂₅₎	85	15.4	17.1₍₂₅₎	90
Burro Mountain	9290	8.9	14.4	62	21.1	20.2	104
Columbine	9170	18.3	21.8	84	27.7	26.6	104
Crosho	8960	5.5	9.4	59	18.0	16.2	111
Divide Peak	8700	13.3	19.4	69	20.7	23.0	90
Dry Lake	8240	16.0	18.1	88	26.8	25.5	105
Elk River	8710	10.6	15.6	68	21.0	20.5	102
Elkhead Divide	8780	12.9	N/A	*	20.4	N/A	*
Little Snake River	8930	21.2	24.9₍₁₆₎	85	32.6	34.3₍₁₆₎	95
Lost Dog	9340	17.9	21.8₍₂₂₎	82	24.2	24.6₍₂₂₎	98
Lynx Pass	8910	0.5	8.7	6	12.2	13.2	92
Old Battle	9850	30.5	33.4	91	30.4	35.6	85
Rabbit Ears	9390	22.0	25.4	87	33.7	32.0	105
Ripple Creek	10340	22.3	26.9	83	25.4	27.2	93
Sage Creek Basin	7830	2.5	8.5₍₁₉₎	29	12.8	13.6₍₁₉₎	94
Sandstone RS	8150	7.5	10.2	74	15.7	18.5	85
Tower	10610	42.3	45.2	94	43.8	41.6	105
Trapper Lake	9750	5.4	N/A	*	18.1	20.1	90
Whiskey Park	8950	26.0	26.3	99	30.2	29.4	103
Basin Index (%)		79			96
ARKANSAS RIVER BASIN
Apishapa	10000	0.4	1.6	25	12.6	14.2	89
Brumley	10570	7.3	11.1	66	12.4	14.0	89
Fremont Pass	11310	17.6	18.1	97	17.6	17.4	101
Glen Cove	11410	-M	5.1₍₁₆₎	*	-M	12.4₍₁₆₎	*
Hayden Pass	10700	0.8	14.2₍₁₃₎	6	10.0	14.5₍₁₃₎	69
Medano Pass	9650	0.2	0.1₍₂₅₎	200*	10.6	12.9₍₂₅₎	82
Porphyry Creek	10790	13.4	15.0	89	19.2	16.6	116
Saint Elmo	10420	4.1	9.9₍₁₃₎	41	12.1	14.0₍₁₃₎	86
South Colony	10790	7.6	18.9₍₂₉₎	40	14.8	22.9₍₂₉₎	65
Ute Creek	10730	0.0	11.8₍₂₀₎	0	11.9	17.2₍₂₀₎	69
Whiskey Ck	10260	0.0	9.2	0	12.2	16.5	74
Basin Index (%)		47			83
UPPER RIO GRANDE BASIN
Beartown	11600	12.4	21.2	58	21.1	24.4	86
Cochetopa Pass	10020	0.1	0.4₍₁₆₎	25*	6.3	8.4₍₁₆₎	75
Culebra #2	10570	2.2	11.7	19	10.4	14.0	74
Cumbres Trestle	10030	8.7	22.9	38	16.0	25.2	63
Elwood Pass	11680	11.8	N/A	*	20.6	N/A	*
Grayback	11620	0.0	N/A	*	13.5	18.9₍₁₆₎	71
Hayden Pass	10700	0.8	14.2₍₁₃₎	6	10.0	14.5₍₁₃₎	69
Lily Pond	11060	0.0	11.2	0	13.8	19.7	70
Medano Pass	9650	0.2	0.1₍₂₅₎	200*	10.6	12.9₍₂₅₎	82
Middle Creek	11260	11.6	18.1	64	15.8	24.0	66
Moon Pass	11110	0.4	5.5₍₁₂₎	7	8.4	8.8₍₁₂₎	95
North Costilla	10570	0.1	1.8	6	12.2	14.1	87
Rat Creek	11680	9.0	N/A	*	14.0	N/A	*
San Antonio Sink	9120	0.1	N/A	*	10.7	N/A	*
Sargents Mesa	11490	5.2	10.0₍₁₂₎	52	9.7	13.4₍₁₂₎	72
Shuree	10080	0.1	0.0₍₁₀₎	*	9.7	10.1₍₁₀₎	96
Slumgullion	11560	6.8	14.2	48	12.5	14.7	85
Trinchera	10850	1.6	8.8	18	10.5	12.4	85
Upper Rio Grande	9370	0.0	0.8	0	9.6	10.0	96
Ute Creek	10730	0.0	11.8₍₂₀₎	0	11.9	17.2₍₂₀₎	69
Wager Gulch	11110	7.6	N/A	*	14.1	N/A	*
Wolf Creek Summit	10930	14.4	31.7	45	18.8	33.8	56
Basin Index (%)		35			74
SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS
Beartown	11600	12.4	21.2	58	21.1	24.4	86
Black Mesa	11580	16.7	N/A	*	21.0	N/A	*
Cascade	8900	-M	0.9	*	-M	20.2	*
Cascade #2	8990	0.1	0.0	*	14.3	19.4	74
Columbine Pass	9160	0.3	11.6	3	16.9	23.5	72
Columbus Basin	10780	14.6	23.8₍₂₆₎	61	21.0	27.7₍₂₆₎	76
El Diente Peak	10210	-M	11.6	*	18.6	20.0	93
Elwood Pass	11680	11.8	N/A	*	20.6	N/A	*
Lizard Head Pass	10190	7.9	13.8	57	15.1	16.4	92
Lone Cone	9730	0.0	9.6	0	16.9	19.8	85
Mancos	10020	0.0	8.6₍₂₆₎	0	12.9	17.8₍₂₆₎	72
Mineral Creek	10030	6.8	13.6	50	17.5	18.3	96
Molas Lake	10610	8.8	20.4	43	17.6	20.8	85
Red Mountain Pass	11050	19.2	23.6	81	25.1	27.4	92
Scotch Creek	9160	0.1	4.0	2	16.1	17.6	91
Sharkstooth	10730	4.2	17.4₍₁₆₎	24	16.7	22.0₍₁₆₎	76
Spud Mountain	10660	6.1	21.2	29	21.5	30.1	71
Stump Lakes	11230	10.4	17.6	59	16.4	19.8	83
Upper San Juan	10140	5.8	28.6	20	19.0	34.8	55
Vallecito	10740	2.8	12.3	23	13.8	18.8	73
Weminuche Creek	10730	0.0	11.8₍₁₀₎	0	16.3	22.0₍₁₀₎	74
Wolf Creek Summit	10930	14.4	31.7	45	18.8	33.8	56
Basin Index (%)		39			77

-M = Missing data.
* = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

If the Basin Index (%) percent value is flagged as potentially invalid,
care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, expressed in inches.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.

The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.